I don't know the voltage, but I can figure it out. I have both step down and step ups for voltage, just wasn't sure if / where I needed them. I think I understand what you're saying for layout. I direct wire V+ from power supply then V- from both power supply and F16 combined, then finally clock from F16. I'm not an electronics expert so not sure of repercussions of mixing grounds from 2 different voltage sources.
Thank you for the input - getting me on the right path I believe.